CVE-2026-62214 in msteams
Summary
by MITRE • 07/17/2026
OpenClaw versions before 2026.5.28 Bot Framework contains an improper input validation vulnerability that allows lower-trust callers to expose bot tokens and credentials by failing to properly validate serviceUrl parameters. Attackers can supply malicious serviceUrl values through configured input paths to retrieve sensitive authentication data outside the trusted boundary.
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Analysis
by VulDB Data Team • 07/17/2026
The OpenClaw Bot Framework vulnerability represents a critical security flaw in versions prior to 2026.5.28 that stems from inadequate input validation mechanisms within the serviceUrl parameter handling. This weakness creates an improper validation scenario classified under CWE-20, where the framework fails to adequately sanitize and validate user-supplied input before processing. The vulnerability specifically targets the authentication token exposure mechanism, allowing malicious actors with lower privilege access levels to manipulate the system's trust boundaries and extract sensitive credential information.
The technical exploitation occurs when attackers manipulate the serviceUrl parameter through configured input pathways within the bot framework architecture. This improper validation enables attackers to craft malicious serviceUrl values that bypass normal security checks and authorization mechanisms. The vulnerability operates at the interface between different trust levels within the system, where legitimate serviceUrl parameters should be validated against a trusted domain whitelist or strict format validation rules. When these validations fail, the system permits arbitrary serviceUrl values to proceed through the authentication pipeline, potentially exposing bot tokens and other sensitive credentials.
The operational impact of this vulnerability extends beyond simple credential theft, as it compromises the entire security model of the Bot Framework implementation. Attackers can leverage this flaw to gain unauthorized access to bot communication channels, potentially leading to man-in-the-middle attacks, session hijacking, or complete control over automated services. The exposure of bot tokens and credentials creates a persistent threat vector that can be exploited repeatedly until the vulnerability is patched. This type of vulnerability aligns with ATT&CK technique T1566, where adversaries exploit vulnerabilities in input validation to gain access to systems, and T1078, which involves legitimate credential access through compromised accounts.
Mitigation strategies for this vulnerability require immediate implementation of strict serviceUrl parameter validation mechanisms that enforce domain whitelisting or comprehensive format validation. Organizations should implement proper input sanitization procedures that reject any serviceUrl values not conforming to predefined security policies. The framework must establish robust authentication boundaries that prevent lower-trust callers from accessing sensitive information through manipulated parameters. Security patches should include comprehensive logging of serviceUrl parameter usage to detect anomalous access patterns and implementation of rate limiting to prevent automated exploitation attempts. Additionally, regular security assessments should validate that all input validation mechanisms are functioning correctly and that the system maintains proper isolation between different trust domains.